Downtown Post Office to Accept Tax Returns until Midnight April 17

Mail Tax Returns Tuesday at 433 W. Harrison Street

April 12, 2018 @USPS

CHICAGO, IL — The Chicago Downtown Post Office will make it quick, easy and convenient for last-minute tax filers by accepting tax returns until midnight Tuesday, April 17 at the Cardiss Collins Facility at 433 W. Harrison Street.

The retail window area is open on the 2nd floor, for those last-minute filers who wish to purchase postage or add special services such as Certified Mail and Signature Confirmation to their returns.

All other Chicago postal stations will close at their regular times April 17, and will not offer extended hours.  Tax returns mailed at those locations must arrive by the closing time to make the midnight Internal Revenue Service deadline.

Tax returns mailed in a street collection box must be deposited by the last collection time posted on the box to make the IRS deadline.

Most common mistakes Americans make in mailing their forms are not including enough postage and not providing the correct IRS mailing address.  After the first ounce — which usually covers about four, letter-sized sheets of paper — mailers need to add 21 cents for each additional ounce. 

The Postal Service receives no tax dollars for operating expenses and relies on the sale of postage, products and services to fund its operations.


Please Note: For broadcast quality video and audio, photo stills and other media resources, visit the USPS Newsroom at

For reporters interested in speaking with a regional Postal Service public relations professional, please go to

Follow us on and like us at For more information about the Postal Service, go to and

Postal News

Illinois Media Contacts